"""Sandboxed executor for the code-verifying verifier (M1c)."""
from mathcompose.common.pyexec import run_python, extract_code_blocks


def test_arithmetic_and_output():
    assert run_python("print(sum(range(101)))").as_feedback() == "5050"
    assert run_python("print(6*7)").stdout.strip() == "42"


def test_timeout_is_caught():
    r = run_python("while True: pass", timeout=1.0)
    assert not r.ok and "timeout" in r.stderr


def test_error_is_caught():
    r = run_python("print(1/0)")
    assert not r.ok and "ZeroDivisionError" in r.as_feedback()


def test_extract_code_blocks():
    text = "a\n```python\nprint(1)\n```\nb\n```\nprint(2)\n```"
    blocks = extract_code_blocks(text)
    assert blocks == ["print(1)", "print(2)"]
    assert run_python(blocks[0]).as_feedback() == "1"